Peroxide kills cells, I would use the Neosporin, maybe dabbed on a cotton swab. He'll probably try to lick it off, but for the brief time it's on, it might help. So sweet of you to try and help the cat, Eric!

Clean the wound as much as possible.
Douse it with the peroxide. Good amounts. It worked great for my dog who had just had abdominal surgery. It really cooled off the spot that had stitches. Apply the neosporin.

A can of tuna as a peace offering.

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